ThreeJS Skeleton Animation from Blender

<!DOCTYPE html>
<html>
    <head>
        <meta charset="UTF-8">
        <title>Skeleton Animation Export</title>
        <meta name="viewport" content="width=device-width, user-scalable=no, initial-scale=1, minimum-scale=1, maximum-scale=1, minimal-ui">
        <style>
            html, body, canvas {
                display:block; width:100%; height:100%;
                margin:0; padding:0; outline:none; border:none;
                touch-action:none; -ms-touch-action:none; touch-action-delay:none;
            }
        </style>
    </head>
    <body ontouchstart="">

        <canvas id="my_canvas"></canvas>

        <script src="three.min.js" type="text/javascript"></script>

        <script type="text/javascript">
var renderer = new THREE.WebGLRenderer({ canvas: document.getElementById( "my_canvas" ) });
renderer.setPixelRatio(window.devicePixelRatio);
renderer.setClearColor('#e7f7e7');
renderer.setSize(window.innerWidth, window.innerHeight);

var scene = new THREE.Scene();

var camera = new THREE.PerspectiveCamera(15, 1, 1, 100);
camera.aspect = window.innerWidth / window.innerHeight;
camera.updateProjectionMatrix();
camera.position.z = 45;
camera.position.y = 3;
scene.add(camera);

var ambient = new THREE.AmbientLight(0xffffff, 0.5);
scene.add(ambient);

var directional = new THREE.DirectionalLight(0xffffff, 0.25);
directional.position.set(-1, 1, 1);
scene.add(directional);

var cylinder;

var loader = new THREE.ObjectLoader();
loader.load("models.json",
    function (object) {
        cylinder = object.getObjectByName("Cylinder");
        scene.add(cylinder);

        cylinder.mixer = new THREE.AnimationMixer(cylinder);
        idleAction = cylinder.mixer.clipAction( cylinder.geometry.animations[0] );
        idleAction.play();

        var helper = new THREE.SkeletonHelper(cylinder);
        helper.material.linewidth = 3;
        scene.add( helper );
    }
);

function onframe(time) {
    if ( cylinder ){
        cylinder.mixer.update(0.01);
        //cylinder.position.x = Math.sin(time * 0.0005) * 6;
    }
    renderer.render(scene, camera);
    window.requestAnimationFrame(onframe);
};
window.requestAnimationFrame(onframe);
        </script>

    </body>
</html>